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LM98640CVAL Scheda tecnica(PDF) 13 Page - Texas Instruments |
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LM98640CVAL Scheda tecnica(HTML) 13 Page - Texas Instruments |
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13 / 55 page  13 LM98640QML-SP www.ti.com SNAS461G – MAY 2010 – REVISED NOVEMBER 2018 Product Folder Links: LM98640QML-SP Submit Documentation Feedback Copyright © 2010–2018, Texas Instruments Incorporated LM98640QML-SP Electrical Characteristics (1)(2) (continued) The following specifications apply for VDD33 = 3.3 V, VDD18 = 1.8 V, CL = 10 pF, and fINCLK = 40 MHz unless otherwise specified. PARAMETER TEST CONDITIONS NOTES SUB- GROUPS MIN TYP(3) MAX UNIT VCLP REFERENCE CIRCUIT SPECIFICATION VCLP DAC Resolution 1, 2, 3 5 5 Bits VCLP DAC Step Size 1, 2, 3 96 98 102 mV VVCLP VCLP DAC Voltage Min Output VCLP Control Register = 1, 2, 3 194 224 298 mV 0110 0000 VCLP DAC Voltage Max Output VCLP Control Register = 1, 2, 3 2.99 3.07 3.11 V 0111 1101 ISC VCLP DAC Short Circuit Output Current VCLP Control Register = 33 mA 011x xxxx COARSE ANALOG OFFSET DAC SPECIFICATIONS Resolution ±8 Bits Offset Adjustment Range Referred to AFE Input CDS Gain = 1x Minimum DAC Code = 0x000 1, 2, 3 –264 –262 –251 mV Maximum DAC Code = 0x1FF 251 263 266 Offset Adjustment Range Referred to AFE Input CDS Gain = 2x Minimum DAC Code = 0x000 1, 2, 3 –132 –131 –126 mV Maximum DAC Code = 0x1FF 126 131 133 Offset Adjustment Range Referred to AFE Output Minimum DAC Code = 0x000 1, 2, 3 –2162 –2146 –2058 LSB Maximum DAC Code = 0x1FF 2058 2154 2176 DAC Step Size CDS Gain = 1x Input Referred 1 mV DAC Step Size CDS Gain = 1x Output Referred 8 LSB DNL Differential Non-Linearity CDS Gain = 1x or 2x 40 MHz 1, 2, 3 –1.1 ±0.97 1.1 LSB INL Integral Non-Linearity CDS Gain = 1x or 2x 40 MHz 1, 2, 3 –2.8 ±1.5 2.80 LSB FINE ANALOG OFFSET DAC SPECIFICATIONS Resolution ±8 Bits Offset Adjustment Range Referred to AFE Input CDS Gain = 1x Minimum DAC Code = 0x000 1, 2, 3 –5.9 –4.6 –3.1 mV Maximum DAC Code = 0x1FF 4.3 5.3 6.8 Offset Adjustment Range Referred to AFE Input CDS Gain = 2x Minimum DAC Code = 0x000 1, 2, 3 –2.9 –2.3 –1.5 mV Maximum DAC Code = 0x1FF 2.1 2.6 3.4 Offset Adjustment Range Referred to AFE Output Minimum DAC Code = 0x000 1, 2, 3 –48 –38 –25 LSB Maximum DAC Code = 0x1FF 35 43 56 DAC Step Size CDS Gain = 1x Input Referred 20 uV DAC Step Size CDS Gain = 1x Output Referred 0.16 LSB DNL Differential Non-Linearity ±1 LSB INL Integral Non-Linearity ±2.2 LSB |
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